Finding the Fourth Proportional to 404,865.50, 606,883.52 and 168,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,865.50 : 606,883.52 = 168,345.50 : x
2. Step 2: Convert to fraction form
   404,865.50/606,883.52 = 168,345.50/x
3. Step 3: Cross multiply
   404,865.50x = 606,883.52 × 168,345.50
4. Step 4: Simplify right side
   404,865.50x = 102,166,109,616.16
5. Step 5: Solve for x
   x = 102,166,109,616.16/404,865.50
6. Step 6: Final answer
   x = 252,345.80